Hello, i am try to install protobuf + grpc + php, here is how i do
sudo apt install php-dev protobuf-compiler protobuf-compiler-grpc
sudo pecl channel-update pecl.php.net
sudo pecl install grpc protobuf
sudo -i
cd /etc/php/7.1/mods-available
echo "extension=protobuf.so" > protobuf.ini